Fix files attaching

Author: egorprnn

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "discord.js-pages",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "description": "Dynamic pages pagination module for discord.js",
   "scripts": {
     "build": "babel src --out-dir lib"

package.json

@@ -120,6 +120,10 @@ export class PagesBuilder extends MessageEmbed {
                             page.setFooter(footer?.text ?? "");
                         }
 
+                        break;
+                    case "files":
+                        page[key] = this[key].length ? this[key] : page[key];
+
                         break;
                     default:
                         page[key] = this[key] ?? page[key];